Środowisko i energia · 12/03/2010
EPA Approves Indiana's Air Quality Plan, Exempts NOx Sources
The US Environmental Protection Agency (EPA) has determined that the Chicago-Gary-Lake County, Illinois-Indiana nonattainment area has met the 1997 eight-hour ozone National Ambient Air Quality Standard, and approved Indiana's request to exempt sources of Nitrogen Oxides (NOx) in Lake and Porter Counties from Reasonably Available Control Technology (RACT) requirements.